Karen Gillan will be a guest on tonights edition of The Graham Norton show alongside Gerard Butler, Martin Freeman and Noel Gallagher. The actress revealed that it is a "massive relief" that the public now know that she is leaving Doctor Who next year.

"I have known for ages that I am leaving and it’s such a massive relief that it is out and I can speak freely about it. I'm back next year for a few episodes, but it's not actually confirmed when I go."